Fluid-pressure valve.



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APPLICATION FILED PEB. 23. 1906.

3 SHEETS-SHEET 1'.

11.885145. PAT 'T AR.211908 w. P. DAVIS. EN ED P FLUID PRESSURE VALVE.

APPLICATION FILED FEB. 23. 1906.

3 SHEETS-SHEET 2.

PATENTED APR. 21, 1908. -W. F. DAVIS. FLUID PRESSURE VALVE.

APPLIGATIOE FILED FEB. Z3. 1906. 3 SHEETS-SHEET 3.

A TTORNE Vl 1 .To all whom it may concern:

" UNITED STATES vPAHENCI? OFFICE.'

WILLIAM F. DAVIS, oF KA'NsAs CITY, KANsAsAssIGNoR oF ONE-HALF 'Io HUGH MATHEWs,

, or KANsAs' CITY, MISSOURI. v

FLUID-PRESSURE VALVE. I

No. 885,145. Y

Specification of Letters Patent.

Parented April 21, i908.

n Applicaticn lod February 23, 1906. Serial No. 802,428. v

Be it known that I, WILLIAMF. DAVIS, la

citizen of the United States, anda resident of `Kansas City, county'of Wyandotte, and State of Kansas, have invented certain new and useful Improvements in Fluid-Pressure Valves, of which' the following is declared to be a full, clear, andvexact description.

The invention relates to an improved form of valve designed to connectand .disconnect a number of iiuid` pressure devicesV with a source of supply and with the exhaust, and

ks to provide a simple and efficient construction oli/valve `by which theiiow of fluid v parts hereinafter set forth, illustrated-in the articu-` under pressure to andfrom'the number of devices may be conveniently and readily controlled.

With theseand other objects in view, the invention consists in the features of construction, combinations and arrangements of accompanying drawings and more larly pointed out 'in the appended c aims.

In the drawings, Figure 1 is a vertical section through one formof the improved valve and taken on the line 1-1 of Figs. 2, 3 and 4.

- Fig. 2`is an inverted plan view of the valve proved valve.

and of the u per portion of the valve'casing with parts s own in section onthe line a-a ofFig. 1 looking in the directionof the ar-,

Fig. Sis a plan viewof the im- Fig. .4 is a plan Vview of the' valvev seat and of the lower portion of the rows 2.

valve casing with parts shown 'in' section on line a-a of Fig. 1 4and looking in the direction of the arrows4. Fi 5`is a vertical section similar to Fig.y 1 lustrating another form of the invention, said section being taken on vthe line 5-5 of Fi s. 6, 7, 8 and 9. Fig. 6 is .a pl-an'view of the ower .portion of the valve casing with parts shown'in section on line 6-6 of Fig. 5.- Fig. 7 lis la similar view showing a planA of the-valve seat, parts being shown in section .on line 7-7- of Fig. 5. Fig. 8 isv aplan view ofthe rotary disk valve vshown in Fig. 5', and Fig. 9 is an inverted' plan view thereof.

In the vform shown in Figs'. -1 to 4iinclusive,

of lthe'va ve .casing 'are substantially' cylindrical in outline and are provided at diametrically opposite points with projecting ears or lugs 12 through which extend the bolts 13 in thelo'wer casing sectlon.

valvecasing.v For convenience in manufacture and for making repairs, the valve seat is preferably formed separate from the body of his disk-shaped valveA the` valve casing. seat" 14 is interposed between the upper and .lower sections and is provided with lugs 15 through which the bolts 13 extend. The central portion of the valve seat sectionl 14 is thickened and this thickened central portion sits within the hollow top or cap section 11 of the valve casing andwithin a recess formed on the upper side of the lower section 10 of the valve casing. The opposite faces of the valve seat section 14 are flat and the recessed for securely connecting the sections of the face of the lower valve casing section 10 is also preferably at,'as' shown. .Asuitable packing 16 is preferably interposed between the lowerface of the valve seatsection 14 and ,thebottom valve casing section 10. The upper face .of the section 14 forms a seat for the rotary disk valve- 1.7.

The su ply of iuid under pressureis preferably le Iinto the valve casing upwardly from the bottom thereofto the space above the disk valve 17. For this lpurpose, the lower casing section 10 is rovidedwith a depending exteriorly threa' ed nipple 18 to which the supply pipe -20 may be connected by a suitable union coupling 20. lThe supply port or passage ,19 extends from the mpple 18 through the bod of the casing sectlon 10, first upwardly, t en inwardly, and then again upwardly and opens on its4 u er face eccentrlcally or at a point to one s1 e of the center. The valve-seat vand disk valve are provided with large central supply passages 21 and 22 and the valve is provided with 1nclined ports 23 leading from the central assage thereof to the upper side of the va ve. The valve -seat 14 is provided with an angular port or passage 24, the lower -portion of which is in line .with and leads from the upper end of the .supply port or passage \19 The up er end of the port 24 extends inwardly an opers into the central passage 21 of the valve seat, In this way the fluid under pressure is led upwardly through the valve casin valve seat and valve to the upper side of t e latter 'and holds it securely on its seat so as to prevent leaking between the valve and its seat. This supply passage is of course always open,

whatever may be the position of the rotary disk' valve.

- devices to union couplings to a pair of depending n seams The form of valve shown in Figs. 1 and 4 is arranged to control the iiuid under pres-l sure to and from a air of fluid pressure devices or yopposite en s of the same device and the service ipes from the fluid pressure e controlled are connected by nipples 26 similar to the nipple 18 to which the supply pipe 20" is coupled. The lower ice ports 28 and exhaust port 29 open ec the valve seat.

tending in axial casing sectlon 10 is provided with service passages or ports 27, similar to the supply passage 19, and opening on the, up er face of the'lower casing section in line wit the service ports 28 that extendin axial direction through the valve seat 14. The nipples 26 (see Figs. 3 and 4) to which the servlce pipes 25 are connected are arranged at diametrically opposite points, but the passages 27V therefrom, as indicated in dotted lines in Fig. 4, incline to one side of the diametrical line -so that the service ports 28 open upon the face of thevalve seat 1-4 closely adjacent and on opposite sides of an exhaust port 29 extending therethrou h. The lower casing section 10 isY provide with an exhaust assage 30, the upper portion of which is inlline with the exhaust port 29 of the valve seat, and which extends through a depending internally threaded nipple 31 arran ed diametrically opposite the nipple 18. 'lghe servcentrically on the valve seat 14 or at one side of, -and at equal distances' from the center of The disk valve 17 is rovidedon its under face with a se menta exhaust channel 32 that is o'r' such ength that, when the valve is in central position, it ex- `tends over .the exhaust ort 29 and both of the service ports 28 so t at, in this position of the valve,l both of the service lpes are connected to the exhaust. The va ve is also provided with a dpair of inlet ports 33 exirection therethrough and opening onto the upper face of the valve.

The valve -l7 is provided about'the central o ening 22 ,with an outwardly extending s oulder or flange 34 within which projects the lower enlarged^end of a valve stem 35. The lower end ofthe valve vstern is slotted and a key 36 extends through the slot and through cut-away portions of the iiange 34. The valve stem extends through a sleeve 37 on the upper portion of the-top section 11 of the valve casing and through a boss 38 onl the innerface of the top section. The face of the boss 38 is ground to form a seat for a collar or ange 39 on the valve stem adjacent its lower end. The ressure-within the valve casing will hold the ange or collar 39`snugly on the seat and prevent leaking around the valve stem. A coiled spring 40 within the central o ening of the valve and valve seat extends etween the base section 1.0 of the valve casing and the reduced lower end of the valve stern and assists in holding the collar 39 of the valve lsnugly to the seat to prevent leaking.

f The upper portion of the valve stem above the sleeve 37 is squared and a lug 41 on the end of a handle 42 is provided w1th a correspondingly shaped orifice to sit over the end of the valve stem, and is held in place by a Washer 43 and a bolt 44 threaded into the end of the valve stem. Thehandle is provided between the lug 41 and its grip ortion with a verticall arranged part 45 t at extends from the' ug 41 downwardly adjacent the sleeve 37. The part 45 is hollow or is provided with a bore within which is arranged a vertically shifting catch-bolt or dog 46. A spring 47 coiled about the bolt 46 extends between 'a collar 48 thereon and a lu 49 that is threaded in the upper end of le ore of the handle. The lower end of the catchbolt is properly sha ed to engage a series of radial notches 50 ormed on a se mental a slot 53 in the lower end of the upri ht-l ortion 45 of the handle and hold t e olt against twisting and in properosition to engage the radial notches 50. T e upward' pressure of the spring 47 on the handle assists m holding the collar 39 on the valve stern snugly against its seat so as to prevent leaking around lthe valve stem.. T e u per end of the sleeve 37 is provided with a aterally extending flange 54 that is cut away (see Fig. 3)' to form' the sto s or'shoulders 55 which engage the vertica portion 45. of the handle and limit its. shift.

The ports 28 and 29 on the valve seat and the exhaust channel 32 and inlet ports 33 of the valve are of course all'located at an equal distance'from the center of motion or axis ofthe valve, so that either theexhaust channel or the inlet ports may be brought into communication with the ports of the valve seat. In the central posltlon of the valve shown in the drawings, the exhaust channel 32 of the valve seat connects both of the service. l{1)orts'28 with the exhaust port 29. When t e valve has been shifted to its extreme position on either sidef of the center, one of the inlet ports 33 will be in line with one of the service ports 28 while the other serviceport is connncted` to the exhaust. If the valve is shifted in either direction to a point half way between its mid-position and. lts full open position, one or the other of the serviceA orts will be connected to the exhaust. hese exhaust, full open and lap portions are indicated in Fig. 3. By tlus arrangtment either one of the service pipes may t erefore be connected tothe source of su ply while the other is connected to the e aust,or both service pipes may be con- 'nected tothe exhaust.

The arrangement of the ports and passages form of valve shown in Fi s. 1 to 4 inclusivev is well adapted for contro in parts of a carl motor by air under pressure, t e valves being located. onthe car platform or motormans cab and the service pipes leadin to the dif,- ferent parts to be controlled. n an application filed by me October 10, 1905, Serial No. 282,153, Ihave illustrated the use of such ay valve for controlling the reversin mechanism of an ex losive engine employe as a car motor. n another lapplication,

Serial No. 282,154, filed October 10, 1905, af

valve of vthis type is set forth and employed to control the shift of the clutches used to connect the .motor to the wheels ofthe car.

The forml of the invention illustrated in Figs. 5 to 94 inclusive, also comprise a valve casing formed of lower and up er sections 10 and 11', an intermediate va ve-seat 14' and a rotary disk valve 17. The sections of the valve casing and the valve seat are connected together as before by bolts 13 extending through lugs 12 and 15 on the connected parts. In this form howevelyfour of such connecting bolts are preferably' employed.

'lhe base section 10 1s provided about its:

)eri her with a series of de endin ni les iill dl wlliich are exteriorily pthreadged tlfd) rel ceive coupling sleeves. The supply pipe 20.' is connected by a4 coupling 20 to the nipple 18 and the service pipes 25 are connected to the nipples 26' by couplings 20. The exhaust passage 30' is interiorl threaded and,

f in this form, extends centra ly through the body of the lower casing section and opens on the upper face thereof into the central opening or chamber 21' in the valve seat 14; A passage 19 extends from'the supply nipple 18 and communicates with a short segmental groove or channel 56 on the under face of the valve seat 14'. This groove communicates with a series of ports 57leading to a segmental groove 58 in the 'up er face and at the outer periphery of the-"va ve that opens outside of the disk valve 17 into the valve casing above the valve. In this form, the valve has no central supplyLo enin sage. The arrangement oflv tlie va ve stem and operating handle is entirely similar to that previously described, except that the valve may be turned to a greater number of positions, and hence the segment 51 on the valve casing is provided with a corres ond-' ingly greater number of notches. 'The ower end ofthe valve stem sits within a socket 59 1n the upper face of the valve-in which the,

spring-40 Ais arranged. In this form too, the

valve may be rotated in either direction' y through a complete Vcircle so that the stop flan e 54 is omitted.y f

T e'valve seat (see Fig. 7) is provided with a segmental row of serviceports 1, 2, 3,

4,5, and 6 which extend axially through theor pastion No. 282,153 above referred to,

valve seat and which are located at equal distances from the centerof the valve seat. The lower casing section 10' is provlded with .a corresponding series of ports 1', 2', 3', 4',

5 and 6' arran ed in line and communicatinv b with theportsof the valve seat and connected by lpassages 60 with the several niplesl 26', W ich passages extend transverse y rom the nipples through the body of the casing section 10' to the ports. The ports are arrano'ed on a segment (somewhat less than a haf circlein the form shown) while the nip les are disposed about the periphery of the ower casing section 1.0 so that the passages 60 are inclined in different directions throughthe body of the valve casing to the rowv of ports.

The valve/V' is provided on its under face with a segmental exhaust channel 61 of sulicient length to extend over all of the service ports. A short radial channel 62 leads centrally and inwardly from the channel 61 and l opens into a central .de ressionon the under face of the valve an( `thus communicates with the central opening 21 into the valve seat and with the exhaust passage 31, so that all of the service pipes may be simultaneously connected to the exhaust. The lvalve is also provided on its under side with a segmental inlet channel 63 from-Which extends an inlet port 64 opening through the upper face of the valve. The inlet channel`63 is also ol' sufficient length to cover all of the service ports so that all of the service pipes may be connected to they supply. The segmental i11- let and exhaust channels, each of wliichis slightly less than a semi-circle, are arranged op osite each other on the under face ofthe I V Ve.

In Fig'. 8., the service .orts 1 to 6 inclusive, are indicatedin dotted lines and, in this position of the valve, all of the service orts and pipes communicating therewith wi l be connected to the exhaust through the exhaust channels 61 and 62. By rotating the valvel one stepl inthe direction indicated by the arrow, service port 1 will be cut ofi' from theV exhaust and connected to the supply through inlet channel 63 and port 64. By a continued shift 'of the valve in the direction of the arrow, theV remaining service orts will be successively cut ofi from the ex aust and connectedjto Athe supply, until the valve has been shifted far enough toconnect all. of the service ports to thesupply. Then by'a rev `verse movement of the valve or by continui ing its 'movement in the same direction, the

service ports an'd pipes connected thereto may be successively connected to the exhaust and out off fromthe supply. In the applicahave disclosed a valve of this sort for successively throwi the series of cylinders of the motor into an out of operation. It will jalso be noted that by-shiftin'gthe valve Vfrom the .position shown in Fig'. 8 in the direction Olp- '-inay be employed for a variety of pur oses.

l-l'aving described my invention, w iat` I claim as new and'desire to secure by Letters Patent, ist- 1. A valve coinprisinga casing having a valve seat with an exhaust passage and a series `of service ports opening through said seat, and a rotary disk-valve on said seat having a segmental exhaust channel on its face and an inlet port extending therethrough, said seat having a supply passage openinr in to the casing above the valve, 'substantiazlly as described.

2. A valve comprising a casing with a valve seat having an exhaust passage and a .series of service ports, a rotary disk-valve on said seat having a segmental exhaust channel -on its face`- and an inlet port extending therethroughfaid seat having. a supply assage opening" into said casing abovc said) valve seat, 'a' valve stem extending through said casing and having a collar on its inner end engaging a seat on the inner fa'ce of said casing, said stein being connected to said valve `but free to move longitudinally independently Ithereof and a spring in acentral opening of said valve for holding said valve stem in position,` substantially as described.

3. A valve comprisinga casing with a valve seat therein'having ports, a rotary diskvalvel on said seat.for controllingthe flow through said ports, a valve stem extending through said casing and connected to said valve but movable longitudinally independ-- ently thereof, said stem having a collar on its inner end engaging a seat on the inner face of said casing, a handle on said stem and a spring-held dog on said handle arranged parallel to said stein 'and arranged to engage a series of notches on said valve casing, substantially as described.

4. A valve comprising a casing with a valve seat therein having ports, a rotary* disk-valve on said'seat for controlling the How through said ports, a valve stem extending through said casing, connected to said valve but movable longitudinally independently thereof, said stem having a collar on its inner end engaging a seat'on. the inner face of said casing, a handle on said stem and a spring-held dog on said handle arranged parallel to said stein and arranged to engage a series of notches on said valve casing, said dog having means -V for holding it against twisting in said handle, substantially as de- 5. A valve comprising a casing having a supply port opening into its upper portion and a -valve seat therein having ports, a rotary disk-valve on said seat for controlling the flow through said ports and a valve stem vextending through the upper portion of said casing and engaging a central opening in said valve, a transverse connecting key engagin slots in said stem and said valve, said stem aving a collar or shoulder engaging a seat on the inner face of said casing, substantially as described.

o. A valve comprising a casing having a su ply port opening into its upper portion, a val)ve seat therein, an exhaust passage, niples on its lower portion to which pipes may be coupled, and a number of service ports extending from said nip les throu h the body of the valve casing an opening tlirough said seat, and a rotary'disk-valve on said seat having a segmental exhaust channel on its g5 under face and an inlet port or ports extending therethrough, substantially as described.

7. A valve comprising upper and llower casing sections bolted together and having a sup ly port opening intoits upper ortion, sauf) lower casing section having a va ve seat therein, an exhaust passage, a series of depending coupling nipples, anda series of service ports extendingfrom said nipples and opening through said valve seat, a rotary disk-valve 1on said seat having a segmental exhaust channel and an inlet port or ports extending therethrough, and a stem extend` ing through a sleeve in said upper casing section and engaging said disk-valve, substantially as described.

8. A valve comprising upper and lower casing sections and an intermediate valvel seat bolted together, said lower section and said seat having communicating service ports and an exhaust passage and a rotary diskvalve for controlling said ports having an exhaust channel on its lower face and an inlet port or ports extending therethrough, suhstantially as described.

9. A valve com rising upper and lower casing sections bo ted together, said lower section having a valve seat thereon, a supply port and an exhaust (passage, opening through said valve seat an a series of service ports opening eccentrically on said valve seat, and a rotary disk-valve on said seat for controlling said ports having an exhaust channel on its under face, and an eccentric inletport-or ports extending therethrough,- substantiall as described.

10. Ava ve comprising-upper and lower casing sectionsbolted toget ier, said lower section having a valve seat thereon, a supply port and an exhaust passage opening through said valve seat and a series of service ports l opening eccentrically on said valve seat, said lower casing section having a series of cou ling nipples communicating with said supp y and service ports, a rotary disk-valve on said seat having asegmental exhaust' channel on its-under face and an eccentric inlet port or ports extending therethrough, a valve stem extending through a sleeve in said upper casing section and engaging said valve, substantially as described;

U"1-1. A valve com rising upper and lower casing sections an an intermediate valve seat bolted together, said lower casing section having coupling nipples and service ports or` passages extending from said nipples and opening on the upper face thereof, said valve seat having ex aust and service ports extending therethrough and communicating with the passages of the lower casing section and a rotary disk-valve on saidv seat having an exhaust channel on its under face and an inlet, port or ports extendingtherethrough, substantially as described.

1'2. A valve com rising upper and lower casing sections an an intermediate valve seat bolted together, said lower casing section having coupling nipples and supply and service ports or passages extending from said nipples and opening through the upper face thereof at equal distances from the center,

' said valve seat resting on such upper face,

and having service ports extending therethrough and exhaustand supply passages communicating with the like ports and passages in saidy lower casing section, a rotary Y disk-valve onsaid lseat having a segmental exhaust channel on its under face `and an inlet port oi ports extending therethrough,

and a valve stem extending through a sleeve on said upper casing section and engaging said valve, substantially as described.

13. A valve com rising upper and lower casing sections an an intermediate valve seat olted together, said lower casing section having coupling nipples and supply and service ports or passages extending from said nipples and opening through'the upper facek thereof at equal distances from the center,

-said valve seat resting onsuch upper face,

l and having service ports extending therethrough and exhaust and supply passages communicating with the like ports and passages in said lower casing section, a rotary disk-valve on said seat having a segmental exhaust channel on its under face, an inlet port` or portsextending therethrough, and a valve' stein extending through a sleeve on said u )per casing section connected to said valve ut-free to move longitudinally independentlv thereof, said stem having a collar or shoul er on its inner end engaging a seat on the inner face of said upper valvesection,

' substantially as described.

14. A valve comprising a casin having a supply and a valve seat with an ex aust port and a series of service'ports opening through said valve seat, and a rotary disk-valve on said seat arranged, when shifted in opposite direction, to successively connect and disconnect said service ports with said su ply and with said exhaust port, substantial y as described.

. 15. A valve comprising a casing having a supply and a flat valve seat with an exhaust assage and a number of service ports opening therethrough, said ports Ibeing arranged in segmental series on the face of said va ve seat and a rotary disk-valve on said seat having a segmental exhaustand inlet channels on its :tace and an inlet port extending thro'ugh the valve from said inlet channel, substantially as described.

16. A valve comprising a casing having a supply passage, a flat 'valve seat, an exhaust passage and a segmental row of service ports in said valve seat, a series of coupling nipples and passages extending through the body of the valve casing to said ports, and a rotary disk-valve on said seat having segmental exhaust and inlet channels on its face arranged lt0 successively connect and disconnect said service ports with said sup ly and withsaid exhaust, substantially as escribed.

17. A valve comprising upper and lower casing sections bolted together, said lower casing section having a iiat valve seat thereon, having an exhaust passage, a series of depending coupling nipples, a number of service ports or passages leading from said nipples and opening in segmental series through said valve seat, a rotary disk-valve on said seat having segmental inlet and exhaust channels on its under face and an inlet port extending therethrough and opening into said inlet channel, and a valve stem extending through a sleeve in said upper section and engaging said valve, said casing having a su p y port opening thereinto above said va ve seat, substantially as described.

18.- A valve comprising upper and lower casing sections bolted together, said lower casing section having a flat valve seat thereon, having' a central exhaust passage, a series of depending coupling nip les, a number of service ports or passages eading from said nipples and opening in segmental series through said valve seat, a rotary disk-valve on said seat having segmental inlet and exhaust 'channels on its under face and an inlet ort extending therethrough and opening into said inlet channel, and a valve stem extending through a sleeve in said upper section and engaging said valve, said lower casing section having a supply passage leading toa passage in said valve seat that opens into -the casing above the valve, substantially as described. l

WILLIAM F. DAVIS.

Witnesses :i

HUGH MATHEws, JAMES D. DONOVAN. 

